Anybody here starting to hear comments from their FBO
on old gasoline in airplanes.

I have a boat and pickup which remain parked for up to 9mo a
year. I always keep them full of gas. NO problems due to
"stale" gas.

The reason that I dont have problems with my boat, truck and airplanes is
that they have large, sealed tanks. Gas goes stale when stored in small
(1-3gal) vented tanks. The volatile aromatic hydrocarbons evavorate, leaving
behind stuff that doesnt vaporize well. In large tanks, the ratio of
volume to surface area is larger, and if the tank is not vented, the
aromatics stay in the tank (vapor pressure reaches an equilibrium).
In a small vented tank, the aromatics just leak away, leaving behind
the "stale" stuff...

Stabil will keep the gallon or two in the mower/snowblower/generator from
going bad...

MikeM